diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/x86_64/processor.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/processor.h | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h index b1a31de7108a..53ffa43c90db 100644 --- a/tools/testing/selftests/kvm/include/x86_64/processor.h +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -19,6 +19,9 @@ #include "../kvm_util.h" +extern bool host_cpu_is_intel; +extern bool host_cpu_is_amd; + #define NMI_VECTOR 0x02 #define X86_EFLAGS_FIXED (1u << 1) @@ -137,6 +140,7 @@ struct kvm_x86_cpu_feature { #define X86_FEATURE_GBPAGES KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 26) #define X86_FEATURE_RDTSCP KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 27) #define X86_FEATURE_LM KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 29) +#define X86_FEATURE_INVTSC KVM_X86_CPU_FEATURE(0x80000007, 0, EDX, 8) #define X86_FEATURE_RDPRU KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 4) #define X86_FEATURE_AMD_IBPB KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 12) #define X86_FEATURE_NPT KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 0) @@ -554,6 +558,28 @@ static inline uint32_t this_cpu_model(void) return x86_model(this_cpu_fms()); } +static inline bool this_cpu_vendor_string_is(const char *vendor) +{ + const uint32_t *chunk = (const uint32_t *)vendor; + uint32_t eax, ebx, ecx, edx; + + cpuid(0, &eax, &ebx, &ecx, &edx); + return (ebx == chunk[0] && edx == chunk[1] && ecx == chunk[2]); +} + +static inline bool this_cpu_is_intel(void) +{ + return this_cpu_vendor_string_is("GenuineIntel"); +} + +/* + * Exclude early K5 samples with a vendor string of "AMDisbetter!" + */ +static inline bool this_cpu_is_amd(void) +{ + return this_cpu_vendor_string_is("AuthenticAMD"); +} + static inline uint32_t __this_cpu_has(uint32_t function, uint32_t index, uint8_t reg, uint8_t lo, uint8_t hi) { @@ -690,9 +716,6 @@ static inline void cpu_relax(void) "hlt\n" \ ) -bool is_intel_cpu(void); -bool is_amd_cpu(void); - struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu); void vcpu_load_state(struct kvm_vcpu *vcpu, struct kvm_x86_state *state); void kvm_x86_state_cleanup(struct kvm_x86_state *state); @@ -716,7 +739,7 @@ static inline void vcpu_msrs_set(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs) int r = __vcpu_ioctl(vcpu, KVM_SET_MSRS, msrs); TEST_ASSERT(r == msrs->nmsrs, - "KVM_GET_MSRS failed, r: %i (failed on MSR %x)", + "KVM_SET_MSRS failed, r: %i (failed on MSR %x)", r, r < 0 || r >= msrs->nmsrs ? -1 : msrs->entries[r].index); } static inline void vcpu_debugregs_get(struct kvm_vcpu *vcpu, |